Research on outdoor solar cell distributed monitoring with ZigBee wireless sensor network: Algorithms and application

Abstract

I-V curve and MPP are key parameters for solar cell performance measuring. A low-cost testing system based on Zig bee for outdoor solar cell outdoor measuring is presented in this paper. The testing algorithm combining constant scale and incremental conductance algorithm is discussed. Interpolation method for I-V curve reconstruction and its error source are analyzed. This paper also reports the specific structure of our outdoor solar cell testing system. Using the developed algorithm and test system, we present a detailed numerical investigation and experiments about distributed outdoor solar cell measurement. The results show that this method can provide high-precision solar cell characters measuring with low complexity.Keywords-photovoltaic power system; 1-V curve measurement; maximum power point; wireless sensor networks; ZigBee I.